Multiscale engineers scale



Se t. 20, 1966 R. o. BERGERSON MULTISCALE ENGINEERS SCALE Filed March 50, 1966 FIG. 4

FIG. I

FIG. 2

FIG. 3

INVENTOR. Ronald O. Bergerson United States Patent 3,273,247 MULTISCALE ENGINEERS SCALE Ronald 0. Berger-son, 2212 E. 86th St., Apt. 22,

Minneapolis, Minn. Filed Mar. 30, 1966, Ser. No. 538,805 4 Claims. (Cl. 33-107) This invention relates to measuring devices, and more particularly a multiscale engineers scale.

It is therefore the main purpose of this invention to provide a multiscale engineers scale assuming an elongated-panel-like configuration which is capable of changeably depicting four different and separate scales without having to turn or relocate said panel.

Another object of this invention is to provide a multiscale engineers scale wherein an attachment is provided for securing said scale to a drafting machine.

Another object of this invention is to provide a multiscale engineers scale which may be readily taken apart for cleaning and maintenance purposes.

Still another object of this invention is to provide a multiscale engineers scale which is easy to manufacture, is of rigid construction, and provides maximum utility to an engineer, draftsman, architect, etc.

Other objects and advantages of this invention will become apparent from a consideration of the following detailed description taken in connection with the accompanying drawing, wherein a satisfactory embodiment of the invention is shown. However, it is to be understood that the invention is not limited to the details disclosed but includes all such variations and modifications as fall within the spirit of the invention and the scope of the appended claims.

In the drawing:

FIGURE 1 shows a top fragmentary view of this invention.

FIGURE 2 shows a view taken along the lines 22 of FIGURE 1.

FIGURE 3 .is a broken away side view of FIGURE 1.

FIGURE 4 is a sectional view taken along the lines 44 of FIGURE 1.

FIGURE 5 is a broken away top plan view showing the invention in its operable use.

According to this invention, a multiscale engineers scale is provided with a substantially elongated housing member 11 which, in turn, is provided with a laterally extending slot 12 for admitting a knurled grasping member 13. A downwardly extending threaded projection 14 is suitably affixed to the grasping member 13 for providing transverse sliding means to the elongated metallic panel 16 which is designed to assume a convex shape. Panel 16 suitably slides within the bottom portion of the housing member 11, which bottom portion 15 is of concave configuration.

Looking now at the drawing, one will see that the elongated bottom panel 19 is provided with a top portion which also assumes a convex configuration thereby providing sliding means for panel 16 which, at all times, abuts the top portion of the bottom panel 19 and the concave portion 15 of the member 11. The end portions of the bottom panel 19 are provided with a plurality of retaining screws 18 which are admitted into holes 17 of the 3 173,247 Patented Sept. 20, 1966 member 11 for conveniently securing said bottom panel 19 with said housing member 11. Both sides of the elongated panel 16 are provided with calibrated readings or scales 20 and 21 which may be graduated or depicted in terms of inches, centimeters, or the like. The sides 22 and 23 of said bottom panel 19 are also graduated into calibrated scales or readings of any desired format or interpretations.

It will also be noted that, in operation, panel '16 may be transversely or sidewise moved to one side of the convex shaped bottom panel 19 by means of the knurled grasping member 13. In this manner, scale 20 or 21 of panel 16 entirely covers scale 22 or 23 of the bottom panel 19 thereby providing a different interpretation or reading on the engineers scale 10. Furthermore, if desired, panels 16 and 19 may be separated from each other thus providing separate measuring means for performing different measuring functions without deviating from the spirit and scope of this invention.

What I now claim is:

1. A multiscale engineers scale comprising, in combination, a substantially elongated housing member, said member having a transversely positioned slot therein, the bottom portion of said member assuming a concave form, an elongated metallic plate, a plurality of graduated markings on both sides of said plate, said plate being of a convex shape, an elongated bottom member, the top portion of said bottom member having a convex configuration and thereby providing means for sliding said plate on said bottom member, a plurality of graduated markings on both sides of said bottom member, a grasping member secured to said plate, said grasping member positioned within said slot of said housing member in such a manner that it provides means for laterally moving said plate to any side of said bottom member thus substituting said markings of said plate for said markings of said bottom member, and means for securing said housing member with said bottom member without interfering with the lateral movements of said elongated plate.

2. The combination according to claim 1, wherein said graduated markings on one side of said plate are of different uniformity from said graduated markings on the other side of said plate, and said graduated markings on one side of said bottom member are of different uniformity from the graduated markings of the other side of said bottom member and said plate.

3. The combination according to claim 1, wherein a cutout is provided on said housing member for securing an attachment of a drafting machine thereon.

4. The combination according to claim 1, wherein said securing means include a plurality of retaining screws for securing said housing member and said bottom member to each other.

FOREIGN PATENTS 360,386 10/1922 Germany.

LEONARD FORMAN, Primary Examiner. 

1. A MULTISCALE ENGINEERS SCALE COMPRISING, IN COMBINATION, A SUBSTANTIALLY ELONGATED HOUSING MEMBER, SAID MEMBER HAVING A TRANSVERSELY POSITIONED SLOT THEREIN, THE BOTTOM PORTION OF SAID MEMBER ASSUMING A CONCAVE FORM, AN ELONGATED METALLIC PLATE, A PLURALITY OF GRADUATED MARKINGS ON BOTH SIDES OF SAID PLATE, SAID PLATE BEING OF A CONCEX SHAPE, AN ELONGATED BOTTOM MEMBER, THE TOP PORTION OF SAID BOTTOM MEMBER HAVING A CONCEX CONFIGURATION AND THEREBY PORVIDING MEANS FOR SLIDING SAID PLATE ON SAID BOTTOM MEMBER, A PLURALITY OF GRADUATED MARKINGS ON BOTH SIDES OF SAID BOTTOM MEMBER, A GRASPING MEMBER SECURED TO SAID PLATE, SAID GRASPING MEMBER POSITIONED WITHIN SAID SLOT OF SAID HOUSING MEMBER IN SUCH A MANNER THAT IT PROVIDES MEANS FOR LATERALLY MOVING SAID PLATE TO ANY SIDE OF SAID BOTTOM MEMBER THUS SUBSTITUTING SAID MARKINGS OF SAID PLATE FOR SAID MARKINGS OF SAID BOTTOM MEMBER, AND MEANS FOR SECURING SAID HOUSING MEMBER WITH SAID BOTTOM MEMBER WITHIN INTERFERING WITH THE LATERAL MOVEMENTS OF SAID ELONGATED PLATE. 